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โฐ Life Tools

Free Life Calculators โ€” Age, Date, Pregnancy & More

Calculate your exact age, days between any two dates, pregnancy due date, ovulation window, retirement countdown, and more. 7 free tools โ€” instant results, no signup.

Accurate to the day
Leap year aware
100% free, no signup
7
Life Tools

Free Pregnancy Calculators โ€” Due Date & Ovulation

Pregnancy planning involves two key calculations: ovulation timing (when conception is most likely) and due date estimation (when the baby will arrive). Our ovulation calculator uses your cycle length and last period date to predict your fertile window and peak ovulation day. Our due date calculator uses Naegele's Rule โ€” the standard obstetric method โ€” to estimate your expected delivery date from your last menstrual period or conception date. Both tools give instant results with no registration required.

Age Calculator โ€” How Old Am I Exactly?

Most people know their age in years, but fewer know their exact age in years, months, and days โ€” or in total days, hours, or minutes lived. Our age calculator gives you all of these from your date of birth. Beyond the novelty, exact age calculations matter for legal purposes (age-restricted services, pension eligibility), medical contexts (age-specific health screening guidelines), and insurance. The calculator also shows your next birthday and how many days away it is.

Retirement Calculator โ€” When Can I Retire?

Retirement age varies by country, employer, and personal financial situation. Our retirement calculator helps you see exactly how many years, months, and days remain until a target retirement age โ€” whether that is your country's state pension age or your own personal FIRE (Financial Independence, Retire Early) target. Seeing retirement as a concrete number of days rather than a vague future date is a powerful motivator for long-term financial planning.

Frequently Asked Questions

Enter your date of birth in our Age Calculator to get your exact age in years, months, weeks, days, and hours. It automatically accounts for leap years and the current date.

The standard method adds 280 days (40 weeks) to the first day of your last menstrual period (LMP). Our Due Date Calculator also shows your current trimester and weeks of gestation.

Ovulation typically occurs 14 days before your next period. The fertile window is 5 days before ovulation plus the day of ovulation itself. Enter your cycle length and period start date in our Ovulation Calculator to get your exact fertile window.

Enter any two dates in our Days Between Dates calculator to get the exact count of days, weeks, months, and years between them. Perfect for anniversaries, contracts, and deadlines.

It divides your current age by the statistical life expectancy for your country and gender to show what percentage of your expected lifespan you've lived โ€” and how many days remain. Try the Life Percentage Calculator.

Naegele's rule (LMP + 280 days) is accurate to within 2 weeks for 90% of pregnancies. Only 5% of babies arrive on their exact due date. Early ultrasound (before 14 weeks) is used to confirm or adjust the estimated due date.

Our Days Until Calculator lets you enter any future date โ€” a birthday, holiday, exam, or trip โ€” and shows the exact countdown in days, weeks, and months. It accounts for leap years automatically.

Online due date calculators using Naegele's Rule are moderately accurate. Only about 4% of babies are born on their exact due date; 80% are born within 2 weeks either side. The biggest source of error is cycle irregularity โ€” Naegele's Rule assumes a 28-day cycle. A first-trimester ultrasound (dating scan) is the most accurate method.

Your life percentage depends on your age and the life expectancy used. Global average life expectancy is approximately 73 years (WHO, 2024). A 30-year-old has lived approximately 41% of an average life. Our life percentage calculator lets you set your own expected lifespan for a personalised result.